Complex Patient Case Results Doris Turner ShadowHealth 2024
Suppose Mrs. Turner's orders call for 500 mg of azithromycin to be administered
intravenously for community-acquired pneumonia. The solution has been diluted to a
concentration of 2 mg/ml and needs to be administered over 1 hour.
At what rate should the infusion pump be set? - Determine how many milliliters of the
concentration will be delivered to administer
the ordered dose.
500 mg x1 mL/2 mg= 250 mL
Divide the total number of ml needed to deliver the 500 mg by the expected
duration of 1 hour.
250 mL/ 1 hr = 250 mL/hr
Number: 250
Units / Rate: mL/hr
Problem type: Dosage calculation + Stock on hand
Medication: venlafaxine
Mrs. Turner's daily medications include venlafaxine extended-release, 150 mg, by
mouth, once a day. However, the hospital pharmacy only carries 75 mg
extended-release tablets.
How many tablets of venlafaxine extended-release should be administered to her? -
You can use the equation below, where X is the number of tablets that should be
administered
D(ordered dose)/H(dose on hand) x Quantity = X
SAMPLE SOLUTION
1. Determine what information you have.
D (ordered dose) = 150 mg
H (dose on hand) = 75 mg
Q (quantity) = 1 tablet
2. Plug into the equation and solve
D (150 mg) x 1 tablet = X
H (75 mg)
X = 2 tablets
ANSWER
, Number: 2
Units: tablets
Problem tvpe: Total daily dosage
Medication: Acetaminophen @ hospital - hypothetical
Suppose Mrs. Tumer's provider updated her order for 325 mg, 2 tabs, by mouth q6h
PRN temp. > 100.5 F to 325 mg, 2 tabs, by mouth q4h PRN temp. > 100 5 F. The
Davis's Drug Guide reports that acetaminophen has a maximum recommended dosage
of 4 g/day
How many doses can Mrs. Turner take without exceeding the recommended maximum
dosage? - HINT
There are 1000 mg in one gram.
SAMPLE SOLUTION
1. Determine how many milligrams are in 4 grams.
4 g x 1000 mg/ 1 g= 4000 mg
2. Determine how many 325 mg tablets go into 4000 mg.
4000 mg x1 tablet/ 325 mg = 12.3 tablets
3. Round down to the nearest whole tablet = 12 tablets
4. Divide the total number of tablets by the number tablets in a dose.
12 tablets total x 1 dose/ 2 tablets = 6 doses
ANSWER
Number 6
Units: doses
Problem type: Total daily dose calculation
Medication: acetaminophen @ hospital
PROBLEM
Suppose Mrs. Tuner's current temperature is 100.8 F. For temperatures greater than
100.5
F, the prescriber's order allows acetaminophen, 325 mg, 2 tabs, by mouth, every 6
hours
Assume that on her first day of hospitalization, Mrs. Tumer's temperature is greater than
Suppose Mrs. Turner's orders call for 500 mg of azithromycin to be administered
intravenously for community-acquired pneumonia. The solution has been diluted to a
concentration of 2 mg/ml and needs to be administered over 1 hour.
At what rate should the infusion pump be set? - Determine how many milliliters of the
concentration will be delivered to administer
the ordered dose.
500 mg x1 mL/2 mg= 250 mL
Divide the total number of ml needed to deliver the 500 mg by the expected
duration of 1 hour.
250 mL/ 1 hr = 250 mL/hr
Number: 250
Units / Rate: mL/hr
Problem type: Dosage calculation + Stock on hand
Medication: venlafaxine
Mrs. Turner's daily medications include venlafaxine extended-release, 150 mg, by
mouth, once a day. However, the hospital pharmacy only carries 75 mg
extended-release tablets.
How many tablets of venlafaxine extended-release should be administered to her? -
You can use the equation below, where X is the number of tablets that should be
administered
D(ordered dose)/H(dose on hand) x Quantity = X
SAMPLE SOLUTION
1. Determine what information you have.
D (ordered dose) = 150 mg
H (dose on hand) = 75 mg
Q (quantity) = 1 tablet
2. Plug into the equation and solve
D (150 mg) x 1 tablet = X
H (75 mg)
X = 2 tablets
ANSWER
, Number: 2
Units: tablets
Problem tvpe: Total daily dosage
Medication: Acetaminophen @ hospital - hypothetical
Suppose Mrs. Tumer's provider updated her order for 325 mg, 2 tabs, by mouth q6h
PRN temp. > 100.5 F to 325 mg, 2 tabs, by mouth q4h PRN temp. > 100 5 F. The
Davis's Drug Guide reports that acetaminophen has a maximum recommended dosage
of 4 g/day
How many doses can Mrs. Turner take without exceeding the recommended maximum
dosage? - HINT
There are 1000 mg in one gram.
SAMPLE SOLUTION
1. Determine how many milligrams are in 4 grams.
4 g x 1000 mg/ 1 g= 4000 mg
2. Determine how many 325 mg tablets go into 4000 mg.
4000 mg x1 tablet/ 325 mg = 12.3 tablets
3. Round down to the nearest whole tablet = 12 tablets
4. Divide the total number of tablets by the number tablets in a dose.
12 tablets total x 1 dose/ 2 tablets = 6 doses
ANSWER
Number 6
Units: doses
Problem type: Total daily dose calculation
Medication: acetaminophen @ hospital
PROBLEM
Suppose Mrs. Tuner's current temperature is 100.8 F. For temperatures greater than
100.5
F, the prescriber's order allows acetaminophen, 325 mg, 2 tabs, by mouth, every 6
hours
Assume that on her first day of hospitalization, Mrs. Tumer's temperature is greater than
